Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/12/2025

Index	Date (NPP)	Time (NPP)	Lat,Lon (NPP)	SZA (NPP )	Date (LANDSAT-9)	Time (LANDSAT-9)	Lat,Lon (LANDSAT-9)	SZA (LANDSAT-9 )	Distance(km)	Time Diff (sec)
1	09/13/2025	04:53:53	70.32, 103.14	66.53	09/13/2025	04:54:56	70.35, 103.12	66.56	3.43	63
2	09/13/2025	05:44:35	-70.21, -89.38	113.57	09/13/2025	05:44:26	-70.23, -89.42	113.55	2.02	9
3	09/13/2025	06:35:11	69.68, 78.74	65.91	09/13/2025	06:34:01	69.69, 77.47	65.94	48.86	70
4	09/15/2025	21:10:53	70.29,-141.06	67.53	09/15/2025	21:11:26	70.29,-141.08	67.53	0.59	33
5	09/15/2025	22:01:35	-70.19, 26.42	112.57	09/15/2025	22:00:56	-70.18, 26.39	112.58	1.56	39
6	09/18/2025	12:37:13	-70.64, 166.84	111.10	09/18/2025	12:38:24	-70.54, 167.53	111.21	27.71	71
7	09/18/2025	13:27:52	70.28, -25.28	68.55	09/18/2025	13:27:54	70.27, -25.22	68.54	2.36	2
8	09/18/2025	14:18:34	-70.16, 142.22	111.56	09/18/2025	14:17:24	-70.16, 142.26	111.56	1.58	70
9	09/21/2025	04:54:07	-70.30, -76.87	110.41	09/21/2025	04:54:57	-70.30, -76.95	110.42	2.93	50
10	09/21/2025	05:44:51	70.21, 90.58	69.52	09/21/2025	05:44:24	70.19, 90.54	69.49	2.96	27
11	09/23/2025	20:20:37	71.04,-129.64	71.38	09/23/2025	20:21:45	70.96,-127.69	71.28	71.07	68
12	09/23/2025	21:11:07	-70.29, 38.91	109.38	09/23/2025	21:11:25	-70.31, 38.96	109.37	2.56	18
13	09/23/2025	22:01:50	70.15,-153.56	70.50	09/23/2025	22:00:53	70.14,-153.64	70.49	2.97	57
14	09/26/2025	12:37:24	70.36, -12.75	71.72	09/26/2025	12:38:24	70.35, -12.72	71.71	1.43	60
15	09/26/2025	13:28:06	-70.23, 154.76	108.40	09/26/2025	13:27:54	-70.25, 154.76	108.39	2.03	12
16	09/26/2025	14:18:39	69.56, -36.92	70.95	09/26/2025	14:17:30	69.64, -38.45	71.03	59.86	69

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/12/2025

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/12/2025 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9